Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for gases

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1 Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for gases Nominal flow ranges from l N /min up to l N /min High accuracy and repeatability Communication via standard signals or Industrial Ethernet Electromagnetic and motor-driven valve actuation available Easy device exchange through configuration memory Type can be combined with Type Type Type Type 9 The MFC / MFM type is suitable for the mass flow control of high flow rates. Type can be configured as MFM or MFC. Optional, four different gases can be calibrated. The thermal inline sensor is located directly in the main gas stream and therefore reaches very fast response times. directacting proportional valve as regulating unit guarantees high sensitivity. The integrated PI controller ensures outstanding control characteristics of the MFC / MFM. MFC Type is available in two versions: with electromagnetic proportional valve and with motor-driven proportional valve. Technical data Operating medium Neutral, non-contaminated gases, others on request Calibration medium Operating gas or air with correction function Medium temperature - C ) to + C (- C ) to + C with oxygen) mbient temperature - C to + C (higher temperatures on request) Materials Body Stainless steel or aluminium Housing PC (Polycarbonate) Seals FKM or EPDM (depending on gas) ) Port connection G or NPT ¼, ⅜, ½, ¾, Sub-base Operating voltage V DC Voltage tolerance ± % Residual ripple ± % Configuration memory (included in delivery) Installation Software tool Electrical connection Industrial Ethernet nalog Input impedance Max. current (voltage output) Max. load (current output) EEPROM (µsim card: büs relevant data and information about spec. control loop in order to ease replacement) Horizontal or vertical Bürkert Communicator PROFINET, Ethernet/IP, EtherCT, Modbus-TCP via x RJ (Switch) ) - m, - m, - V or - V via D-Sub 9 ) or terminal block > kω (voltage), < Ω (current) m Ω ) When using a motor valve the minimum medium temperature is C. ) When using a motor valve additionally: - Type DN: Seat seal in PEEK - Type : Seat seal in l O ) Supply voltage via separate terminal block. ) The analog version with D-Sub9 features an additional digital input and a relay output. /

2 Nom. flow ranges of typical gases Gas (other gases on request) Min. Q nom [l N /min] Max. Q nom [l N /min] cetylene 9 mmonia rgon Carbon dioxide ir, Oxygen, Nitrogen Methane Propane Technical data: Type with solenoid proportional valve Type can be configured as MFM or MFC. For MFCs the direct-acting proportional valves of Types x are used. These solenoid proportional valves are normally closed and stand for highest accuracy and repeatability with settling/response times of a few hundred milliseconds. Technical data Nominal flow range (Q nom ) l N /min (N ), MFM up to l N /min (N ) Turndown ratio : ) Max. operating pressure Data in overpressure to atmospheric pressure ccuracy Repeatability Settling/Response time (t9%) Proportional valve (solenoid) Valve orifice range K VS value range Power consumption ) Protection class Dimensions See pages - Total weight bar (with MFCs the max. pressure depends on the orifice of the valve) optional up to bar for MFM ±. % o.r. ±. % F.S. (after min. warm up time) ±. % F.S. < ms normally closed. mm.. m /h Max. W (as MFM) Max... W (as MFC, depending on proportional valve type) IP ca.. kg (l, W valve), ca.. kg (V, W valve) Device status RGB-LED based on NMUR NE ) With vertical installation and flow downwards the turndown ratio is : ) Referring to the typical power consumption (at C ambient temperature, nominal flow and min. regular operation) The data according to UL - may differ (see manual) Technical data: Type with motor-driven proportional valve The Type with motor-driven valves is especially designed for applications with high inlet pressures of up to bars or high flow rates (at a low pressure drop). The motor s power consumption to hold a specific opening position is nearly zero. This key feature can reduce the energy consumption of a plant dramatically. Without electrical power the valve remains in its current position. The maximum duty cycle of the motor depends on the ambient temperature. The duty cycle does not refer to the duty cycle of the device but to the duty cycle of the motor. The motor is not switched on unless the valve is to move. Frequent set-point value changes will drastically increase the duty cycle of the motor. Derating curve for Type with motor valve Duty cycle [%] 9 DN- (< bar) DN- and DN- (> bar) DN- (< bar) max. ambient temperature [ C] Technical data Nominal flow range (Q nom ) l N /min (N ) Turndown ratio : ) Max. operating pressure Data in overpressure to atmospheric pressure ccuracy Repeatability Settling/Response time (t9 %) Proportional valve (motor-driven) Valve orifice range K VS value range Power consumption ) bar (with MFCs the max. pressure depends on the orifice of the valve) ± % o.r. ±. % F.S. (after min. warm up time) ±. % F.S. < sec. normally persistent mm.. m /h Max. W (as MFM) Max. W (as MFC) ) IP Protection class Dimensions See pages -9 Total weight ca.. kg (l, standard, valve ), ca..9 kg (V, standard, valve ) Device status 9) For MFM: RGB-LED acc. to NMUR NE For valve: RGB-LED to indicate the valve opening ) With vertical installation and flow downwards the turndown ratio is : ) Data during moving of the valve. The power to hold a specific valve opening < W 9) Detailed description of the LED colours: see manual /

3 Pressure Loss Diagram of a MFM (ref. to air),, 9,,,,,,,,,, 9,,,,,,,,,, p [mbar] G/ G/ G/ G/ G 9 Q [l N /min] The diagram shows exemplarily the pressure loss characteristics when air is flowing through. For determining the pressure loss with another gas it needs to calculate the air equivalent and respect the fluidics needed with the other gas. Notes Regarding the Configuration For the proper choice of the actuator orifice within the MFC, not only should the required maximum flow rate Q nom be known, but also the pressure values directly before and after the MFC (p, p ) at this flow rate Q nom should be known. In general, these pressures are not the same as the overall inlet and outlet pressures of the whole plant, because usually there are additional flow resistors (tubing, additional shut-off valves, nozzles etc.) present both before and after the controller. Please use the request for quotation form on p. to indicate the pressures directly before and after the MFC. If these should be unknown or not accessible to a measurement, estimates are to be made by taking into account the approximate pressure drops over the flow resistors before and after the MFC, respectively, at a flow rate of Q nom. In addition, please quote the maximum inlet pressure p max. to be encountered. This data is needed to make sure the actuator is able to provide a closetight function within all the specified modes of operation. The request form on page contains the relevant fluid specification. Using the experience of Bürkert engineers already in the design phase provide us with a copy of the request containing the necessary data together with your inquiry or order. Measuring Principle R R PI This sensor works as a hot-film anemometer in the so called CT operational mode (Constant Temperature nemometer). To do this, two resistors with precisely specified temperature coefficients located directly in the media flow and three resistors located outside the flow are connected together to form a bridge. RV RT RS IS The first resistor in the gas flow (RT) measures the fluid temperature, while the second, low value resistor (RS) is heated so that it is maintained at a fixed, predefined overtemperature with respect to the fluid temperature. The heating current required to maintain this is a measure of the heat being removed by the flowing gas, and represents the primary measurement. n adequate flow conditioning within the MFC and the calibration with high quality flow standards ensure that the mass of gas flowing per time unit can be derived from the primary signal with high accuracy. /

4 Pin ssignment Industrial Ethernet 9 Terminal block pin Pin 9 ssignment FE (Functional earth) RJ socket 9 9 DGND + V DC Pin TX + TX - RX + not connected not connected RX - not connected not connected Body SHIELD nalogue D-Sub 9 pin, plug Pin ssignment Digital input GND + V DC 9 Relay - Opener Relay - Reference contact Set value input + Set value input GND ctual value output 9 ctual value output GND Body SHIELD nalogue Terminal block pin Pin ssignment + V DC GND Set value input + Set value input GND ctual value output + ctual value outputgnd /

5 Dimensions [mm] Type MFC with valve Type (9 W coil) x M.. R... ca G ¼ NPT ¼ G ⅜ NPT ⅜ MFC with valve Type ( W coil) G ½ NPT ½ G ¾ NPT ¾ x M... R.. 9 ca... /

6 Dimensions [mm] Type MFC with valve Type ( W coil). x M.. ca.. G ¼ NPT ¼ G ⅜ NPT ⅜ G ½ NPT ½ G ¾ NPT ¾.. R.. 9. Version with base block for large nominal flow rates For a nominal flow Q nom > l N /min the overall length increases by mm. x M.. ca.. G ½ NPT ½ G ¾ NPT ¾ G NPT.. R... Ø. /

7 Dimensions [mm] Type MFM version x M... 9 R G ¼ NPT ¼ G ⅜ NPT ⅜ G ½ NPT ½ G ¾ NPT ¾ Version with base block for large nominal flow rates For a nominal flow Q nom > l N /min the overall length increases by mm x M... R.. Ø G ½ NPT ½ G ¾ NPT ¾ G NPT...9. /

8 Dimensions [mm] Type MFC with valve Type x M R.. ca.. 9. G ¼ NPT ¼ G ⅜ NPT ⅜ G ½ NPT ½ G ¾ NPT ¾ G ½ NPT ½ G ¾ NPT ¾ G NPT. Version with base block for large nominal flow rates For a nominal flow Q nom > l N /min the overall length increases by mm x M R.. ca...9. Ø /

9 Dimensions [mm] Type MFC with valve Type Valve orifice DN and DN x M...9. R.. ca Ø Valve orifice DN and DN G ½ NPT ½ G ¾ NPT ¾ G NPT. x M R.. ca Ø Version with base block for large nominal flow rates For a nominal flow Q nom > l N /min the overall length increases by mm 9/

10 Ordering Chart for ccessories rticle büs-stick Set (incl. cable (M and Micro-USB), Stick with integrated terminating resistor) Power supply Type for rail mounting, V C/ V DC,., NEC Class (UL ) Power supply Type for rail mounting, V C/ V DC,, NEC Class (UL ) Power supply Type for rail mounting, V C/ V DC,, NEC Class (UL ) Power supply Type for rail mounting, V C/ V DC, µsim-card (included in delivery of MFC) LabVIEW device driver Device description files for PROFINET (GSDML), Ethernet/IP (EDS), EtherCT (ESI) Software Bürkert Communicator For nalogue Terminal block pin (for Standard; included in delivery of the corresponding analog version) rticle no. on request on request Download from Download from on request Connector cable D-Sub 9 to leads, m Connector cable D-Sub 9 to leads, m To connect the MFC / MFM with the Bürkert Communicator software tool, you need a büs-stick. The connection is made via the micro-usb socket on the device (büs-stick Set contains the necessary accessories). ttention: The interface to the Bürkert Communicator software tool is based on CNopen. The appropriate bus termination is mandatory. Hence, please activate the connectible termination resistor on the büs-stick. Software Bürkert Communicator To install the software, click on the download button. Part of Bürkert s new EDIP program (Efficient Device Integration Platform) is the Bürkert Communicator. This software can be run under MS-Windows and it is available on Bürkert s website for free. The Bürkert Communicator allows convenient system configuration and parameterization of all connected field devices. n accessory part, the büs stick please see ordering chart for accessories serves as the interface between computer and process instruments. It transfers USB data to CN data. The Communicator allows: - Diagnosis - Parameterization - Registration and storage of process data. The Communicator allows: - Diagnosis - Parameterization - Registration and storage of process data - Data logging - To watch graph of process - To update firmware of the büs device connected - To program system controls by User-f(x) e.g. gas blending - Guided re-calibration - /

11 MFC/MFM applications - Request for quotation Please complete and send to your nearest Bürkert sales centre Company Customer No. ddress Postcode/Town Contact person Department Tel./Fax MFC pplication MFM pplication Quantity Required delivery date Preferred valve type: electromagnetic (highly dynamic) motor-driven (energy saving) Medium data Type of gas (or gas proportion in mixtures) Density kg/m ) Gas temperature [ºC or ºF] ºC ºF Moisture content g/m brasive components/solid particles no yes, as follows: Fluidic data Flow range Q nom Min. l N /min ) l S /min (slpm) ) Max. m N /h ) kg/h cm N /min ) cm S /min (sccm) ) ) Inlet pressure at Q nom p = bar(g) Outlet pressure at Q nom p = bar(g) Max. inlet pressure P max bar(g) l N /h ) l S /h ) MFC/MFM port connection without screw-in fitting ¼" G-thread (DIN ISO /) ¼" NPT-thread (NSI B.) ⅜" G-thread (DIN ISO /) ⅜" NPT-thread (NSI B.) ½" G-thread (DIN ISO /) ½" NPT-thread (NSI B.) ¾" G-thread (DIN ISO /) ¾" NPT-thread (NSI B.) " G-thread (DIN ISO /) " NPT-thread (NSI B.) with screw-in fitting (acc. to specification for pipeline) mm pipeline (external Ø) inch pipeline (external Ø) Sub-base Installation horizontal vertical, flow upwards vertical, flow downwards mbient temperature C Material data Body base luminium Stainless steel Seal FKM EPDM Electrical data Signals for set point and actual valve PROFINET Ethernet/IP EtherCT Modbus TCP m m V V Terminal block version, Default: D-Sub Please quote all pressure values as overpressures with respect to atmospheric pressure [bar(g)] ) at:. bar(a) and ºC ) at:. bar(a) and ºC ) matches with calibration pressure To find your nearest Bürkert facility, click on the orange box g In case of special application conditions, please consult for advice. Subject to alteration. Christian Bürkert GmbH & Co. KG /_EU-en_ /

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